| abstract |
The invention provides a novel means for solving the serious problem in conventional silicone sealant compositions that the surface of the cured sealant composition, when used for sealing or caulking of a joint in building structures of, in particular, stony components, is susceptible to stain from environmental atmosphere eventually spreading over the adjacent surfaces. The invention proposes admixing a limited amount of a specific fluorine-containing surface active agent with the silicone sealant composition before it is applied for sealing or caulking. |